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TI-2018-01456 Aliases CVE-2018-1636GHSA-7j5j-7jpv-gf26

Out-of-bounds write in IBM Informix Dynamic Server Enterprise Edition

Priority LOW 30CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1 allows an authenticated user to execute predefined code with root privileges, such as escalating to a root shell. IBM X-Force ID: 144441.

Why it matters now

EPSS 0.00439 38th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMInformix Dynamic Server Enterprise Edition12.1—No fix listedCNA
  • Informix Dynamic Server Enterprise Edition VendorIBM Affected 12.1 Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc1:*:*:enterprise:*:*:*12.10 fc1VulnerableIBM
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc10:*:*:enterprise:*:*:*12.10 fc10VulnerableIBM
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc11:*:*:enterprise:*:*:*12.10 fc11VulnerableIBM
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc12:*:*:enterprise:*:*:*12.10 fc12VulnerableIBM
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc2:*:*:enterprise:*:*:*12.10 fc2VulnerableIBM
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc3:*:*:enterprise:*:*:*12.10 fc3VulnerableIBM
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc4:*:*:enterprise:*:*:*12.10 fc4VulnerableIBM
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc5:*:*:enterprise:*:*:*12.10 fc5VulnerableIBM
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc6:*:*:enterprise:*:*:*12.10 fc6VulnerableIBM
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc7:*:*:enterprise:*:*:*12.10 fc7VulnerableIBM
  • cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc1:*:*:enterprise:*:*:* Versions 12.10 fc1 Vulnerable ·IBM
  • cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc10:*:*:enterprise:*:*:* Versions 12.10 fc10 Vulnerable ·IBM
  • cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc11:*:*:enterprise:*:*:* Versions 12.10 fc11 Vulnerable ·IBM
  • cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc12:*:*:enterprise:*:*:* Versions 12.10 fc12 Vulnerable ·IBM
  • cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc2:*:*:enterprise:*:*:* Versions 12.10 fc2 Vulnerable ·IBM
  • cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc3:*:*:enterprise:*:*:* Versions 12.10 fc3 Vulnerable ·IBM
  • cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc4:*:*:enterprise:*:*:* Versions 12.10 fc4 Vulnerable ·IBM
  • cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc5:*:*:enterprise:*:*:* Versions 12.10 fc5 Vulnerable ·IBM
  • cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc6:*:*:enterprise:*:*:* Versions 12.10 fc6 Vulnerable ·IBM
  • cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc7:*:*:enterprise:*:*:* Versions 12.10 fc7 Vulnerable ·IBM
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc8:*:*:enterprise:*:*:*12.10 fc8VulnerableIBM
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc9:*:*:enterprise:*:*:*12.10 fc9VulnerableIBM
  • cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc8:*:*:enterprise:*:*:* Versions 12.10 fc8 Vulnerable ·IBM
  • cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc9:*:*:enterprise:*:*:* Versions 12.10 fc9 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1636
  2. 2026-10-03 Alias added: GHSA-7j5j-7jpv-gf26

References

Advisory 2

  • TI-2009-02627 Integer signedness error in the authentication functionality in librpc.dll in the… CVSS 2.0HIGH 10.0
  • TI-2009-02626 Multiple buffer overflows in the authentication functionality in librpc.dll in the… CVSS 2.0HIGH 10.0
  • TI-2010-03848 Integer overflow in librpc.dll in portmap.exe (aka the ISM Portmapper service) in ISM… CVSS 2.0HIGH 10.0
  • TI-2008-00734 Multiple stack-based and heap-based buffer overflows in the Windows RPC components for… CVSS 2.0HIGH 10.0
  • TI-2011-00892 Stack-based buffer overflow in oninit in IBM Informix Dynamic Server (IDS) 11.50 allows… CVSS 2.0HIGH 9.3
  • TI-2008-00912 Unspecified vulnerability in IBM Informix Dynamic Server (IDS) 7.x through 11.x allows… CVSS 2.0HIGH 10.0
See all 52 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences